Container



, June 16, 1931. H. SCHWARTZ CONTAINER Filed July 9, 1928 inl Fig. 2this viewalso showing thecollector Patented June 16, 1931 lPATENTQoFFicE HENRY scnWnnTz, enmarcado, Innlnois i Colvin/.uri15in.`

Application niegijuiy y9,1928.`r serial NQ. aereas.

My" invention relates to'containe'rsin general,"bu`t inoreparticularlyto cans, or drums, foriluids such` for example, and moreespe cially,lubricating oil; and my primary ob-A ject is to prevent re-sealing ofthe containers by the plugs furnished thereon, after the opening 'of thecontainers for the removal of theirlcontents, but permitting of thesubsequent sealing of the containers by plugs of a different` size,thereby to prevent unscrupulous persons from removing the contents ofthe containers and substituting other contents therefor and disposing ofsuch substituted contents in place of the original contents, and topro-videsimple .and economical means for` this purpose.-

Referring to the accompanying drawings Figure 1 isY a sectional viewthrough 'the plug-equipped portion of a container embodying myinvention, this View vshowing the positions `assumed by the parts oftheplug'at the conclusion of theoperation of screwing the plug intoplace in the filler opening of the container. Y 4

Figure; 2 is aview like Fig. 1 of the construction therein' shown, thisview showing ythe positions assumed bythe parts upon the initialrotation of the plug Afor'relnoving'it from the filler opening.

Figure 3 is a bottom plan View of the plug` with the parts thereofpositioned as shown in Fig. 1, the collector for the cuttings beingremoved. f l Q Figure 4 is a'bottom lplan view of the plug Withthe partsthereof positioned as shown removed.

- Figure 5 is a plug;and f Y s Fig. 6, an enlarged broken sectional viewof the bushing yforming a part of the structure of`Fig.1.f f 'i y In theparticular illustrated embodiment of my inventiomthe wall in whichthe/filler opening is4 provided, and which may be the topwall of thecontainer, is represented'at 6 andis shown as apertured at to whichportion aninternally threaded flanged ring VV8 is secured, v"The'edgeportion of 'the vwall 6 surrounding'the opening 'is deflected as repre-View in side elevation of the sented atQ9, thisdeflection being shown iextending outwardlyand laffording an annular recess Vl() in which theannular flange 1lV of the ring 8 Vis seated and in which itis scoured,as for example by welding.

Screwed into the internal threads 12 of the ring 8 isla bushing 13externally andfinternally screwsthreaded as represented at yHand 15,respectively. In the particular varrangement shown'both the internal andexternal threads of the bushing are right-hand threads, andthebushing'is assembled with the ring 8 by screwing it upwardly intothisring, the external thread on the bushing being shown asextending shortof the lower yend 'thereof asi-represented at lflvthereby preventing theunscrewing ofthe bushing from the ring when force,` externallyv ofthecontainer, is applied against this bushing by the unscrewing of theplug, hereinafterreferred to, Yfrom the bushing and tendingto rotate thebushing in counterclookwise direction,

The plug provided for sealing the bush-y l ing-equipped filler." openingof the can, is represented `at 16, it-being externally screw threaded asrepresented at 1'( at Vwhich it is adapted, when rotated in clockwisedirection, toscrew into the internal threads 15 of the bushing,- agasket 18 being preferably interu posedbetw'een the upper, annular,flange portion 19Vof the plug and the opposing end of the bushing 13 andthe wall portion of the container, as shown. c

In accordance with'omy invention means are provided for so mutilatingthe internal thread l15r ofthe bushing, uponv unscrevving the plugi16therefrom, as to prevent the resealing of the container by the plugremoved therefrom. These means may be of any desirable form such, as forexample, those 9 shown in the vdrawings and which 'operate to cut awaythe internal thread 15 of the bushing upon unscrewing the plugtherefrom;y

According to the particularillustrated emy bodiment of these means, thebottom ofthe plug 16 containsy a'centrally disposed recess 20, the upperwall of 'which' contains diamet` rically opposed recesses 2,1 which openthrough thesidewall of the plug, as shown. Located in the recesses y2()are cutting tools the operator starts to unscrew the plug from A thebushing the friction between the thread 15 of the bushing and theopposed end-surfaces of the cutters, causes the cutters to rotate to theposition shown in Figs. 2 and 4 thereby causing their cutting edges toengageV the thread 15 of the bushing andV cut it away in the unscrewingof the plug.

The cutting' tools 22 are preferably so proportioned and arranged thatthe one which first engages the thread in the operation of unscrewingthe plug and represented at the left-hand side of Fig. 4, only partiallycuts away the thread 15 of the bushing and the other cutter completesthe cutting away operation.

',The plug is preferably provided with means for collecting the cuttingsproduced by the action of the cutting tools 22 these means comprising adished plate 24 secured centrally, as by a screw 25, to a centraldepending lug 26 on the body of the plug.

Itvwill be understood from the foregoing that it is notpossible toremove the plug 16 from the bushing 13, with these parts assembled withthe other parts of the container as shown, without so mutilating theinternal thread of the bushing that the container cannot be resealed bythe plug; the bushing 13, according to the preferred illustratedembodiment of my invention, remaining in place in the ring 8 and thecutting devices on the plug cutting away the internal thread of thebushing, when force is applied to the plug for unscrewing it from thebushing, as the bushing is held againstunscrewing from the ring 8.

The purpose of my invention being to provide against the sealing` of thecontainer by plugs of the size originally supplied with the containers,but vwithout rendering the container unsealable, for subsequent use, theinternally and vexternally threaded bushing is provided, the removal ofwhich from the container, in any desirable way, causes the latter topresent the threaded opening 12 into which a plug of larger size may bescrewed. A bushing provided as stated is difficult of removal except bythe use of machinel shopV devices and thus presents the added advantageof greatly militating against the Vremoval of the plugs from thecontainers and the re-sealing of the latter with any size of screw plug.

.lVhile I have illustrated anddescribed a particular embodiment of myinvention, I do not wish to be understood as intending to limit itthereto as the same may be variously modified and altered withoutdeparting from the spirit of my invention.

vWhat I claim as new, and desire to secure by Letters Patent, is:

1. The combination with a container havj ing a threaded opening, of abushing having internal and external threads and screwed into saidopening, the cooperating threads of said bushing and container beingsuch that in screwing the bushing to place the bushing moves toward theouter end of said opening and becomes jammed in said opening, and aclosure Vplugl screwed into said bushing and provided with meansoperating upon the unscrewingV of said plug from said bushing, to somutilate the internal threads of said bushing as to render it unadaptedfor receiving a similar plug.

2. The combination with a container having a threaded opening, of abushing having internal and external threads and screwed into saidopening, a threaded closure plug screwed into said bushing and providedwith means operating, upon the unscrewing of said plug from saidbushing, to so mutilate the internal ythreads of said bushing as torender it unadaptevd for receiving a similar plug, the threads in saidopening and on said bushing and plug being such that in screwing thebushing to place the bushing moves toward the outer end of said openingand in unscrewing said plug from said bushing the plug exerts a forcetending to rotate said bushing in a directionto unscrew it through theouter end of said opening, and means resisting said force.

3. The `combination with a container having a threaded opening, of abushing having internal and external threads and screwec into saidopening, and a threaded closure plug screwed into said bushing andprovided with means operating, upon the unscrewing of said plug fromsaid bushing, to so mutilate the internal threads of said bushing as torender it nnadapted for receiving a similar plug, the threads in saidopening and on said bushing and plug being such that in screwing thebush` ing to place the bushing moves towardv the outer end of saidopening and becomes jammed in said opening and in unscrewing said plugfrom said bushing the plug exerts a torce tending to rotate saidbushing' in a direction to unscrew it through the outer end of saidopening, which is resisted by the bushing being .jammed as above stated,in said opening. y

4. Ihel combination with a container having a threaded opening, of abushing having internal and external threads and screwed into vsaidopening, a threaded closure-plug screwed into said bushing and providedwith means operating, upon the'uns'crewing' of said plug from saidbushing, to so mutilate the internal threads of said bushing as torender it unadapted for receivin a similar plug, and

means for holding said ushing against rotation out of said opening inthe unscrewing of said plug.

5. The combination with a container having a threaded opening, of abushing having internal and external threads and screwed into saidopening, a threaded closure-plug screwed into said bushing and providedwith f holding said bushing against rotation out of said opening intheunscrewing of said plug.

6. The combination with a container having a threaded opening, of abushing having internal and external threads similarlydisposed andscrewed at one of its threads into said opening, a threaded closure plugscrewed into said bushing and provided with means operating, upon theunscrewing of said plug from said bushing, to so mutilate the internalthreads of said bushing as to render it unadapted for receiving asimilar plug, and means for holding said bushing against rotation out ofsaid opening in the unscrewing of said plug.

7. The combination with a container having a threaded opening, of abushing having internal and external right-hand threads and screwing atits external thread into said opening, a threaded closure plug screwedinto said bushing and provided with means operating, upon the unscrewingof said plug from said bushing, to so mutilate the internal threads ofsaid bushing as to render them unadapted for receiving a similar plug,and means for holding said bushing against rotation out of said openingin the unscrewing of said plug.

8. The combination with a container having a threaded opening, of abushing having f internal and external threads and screwed intosaidopening, a threaded closure-plug screwed into said bushing and providedwith Y means operating, upon the unsorewing of said plug from saidbushing, to so mutilate theV internal threads vof said bushingas torender i it unadapted for receiving a similar plug7` and means renderingsaid bushing in the assembled condition of said parts inaccessible forapplication of a tool thereto :tor'rotating it in said opening.

HENRY SCHWARTZ.

